MAX22217ATJY+T

Overview

The MAX22217ATJY+T is a quad serial programmable half-bridge driver designed for inductive loads. It operates from a supply voltage of 4.5 V to 36 V with a quiescent current of 7 mA. Each half-bridge provides a full-scale current capability of 1 A and supports a DC current of 0.55 A at 25°C ambient temperature. The device features a TQFN-32 package and functions within an operating temperature range of -40°C to +125°C. It integrates advanced control methods including voltage and current drive regulation, along with comprehensive diagnostic and protection mechanisms.

Feature Summary

• Supports high-side, low-side, bridge-tied load (BTL), and parallel channel configurations via SPI or OTP registers
• Integrates voltage and current drive regulation modes with internal current sensing and feedback
• Includes diagnostic capabilities such as plunger movement detection, open-load detection, and travel time measurement
• Provides overcurrent, overtemperature, and undervoltage lockout protections with fault status reporting

Applications

• Driving on-off solenoid valves
• Controlling DC motors
• Actuating proportional valves
• Operating bi-stable valves and relays

Procurement Notes

Verify the specific suffix ATJY+T against the manufacturer's official datasheet to confirm pinout and thermal specifications. Ensure the design accounts for the TQFN-32 package thermal requirements given the 125°C maximum operating temperature. Confirm that the application environment does not exceed the specified 36 V supply limit. Check for any recent product change notices regarding manufacturing location or material composition updates.

Selection Notes

Select this component when four independent half-bridges are required for inductive load control. Choose the MAX22217 over the MAX22216 if the application demands lower current ratings, specifically 1 A per half-bridge instead of 3.2 A. Consider this part for designs requiring integrated diagnostics and flexible configuration options via SPI or OTP memory. Ensure the system architecture supports the necessary serial communication interface for real-time parameter adjustment.

Part Context

This device belongs to the MAX2221x family of smart drivers. It shares architectural similarities with the MAX22216 but differs in output current capacity. The series is designed for industrial and automotive applications requiring robust solenoid and motor control. The integration of digital diagnostics distinguishes it from basic half-bridge drivers by enabling predictive maintenance features.

Replacement Considerations

The MAX22216 is a functional alternative within the same family, offering higher current capability of 3.2 A per half-bridge. Verify compatibility if higher current handling is required. No other direct substitutes are confirmed in the provided documentation.